homework questions. graphing: secant and cosecant section 4.5
TRANSCRIPT
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Homework QuestionsHomework Questions
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Graphing:Graphing:Secant and CosecantSecant and Cosecant
Section 4.5Section 4.5
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csc (x)csc (x)
Flip of sin (x)Flip of sin (x) PropertiesProperties
– Period: 2Period: 2– Domain: all real numbers except nDomain: all real numbers except n– Range: (-Range: (-∞, -1] [1, ∞)∞, -1] [1, ∞)– No x-intNo x-int– No y-intNo y-int– y=1 when y=1 when – y=-1 when y=-1 when
nx 2
2
3
nx 2
2
3
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Graph of csc(x)Graph of csc(x)
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GraphGraph 2)42
csc(
y
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GraphGraph 3)2csc( y
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sec (x)sec (x)
Flip of cos (x)Flip of cos (x) PropertiesProperties
– Period: 2Period: 2– Domain: all real numbers except n, n is Domain: all real numbers except n, n is
oddodd– Range: (-Range: (-∞, -1] [1, ∞)∞, -1] [1, ∞)– No x-intNo x-int– y-int = 1y-int = 1– Asymptotes when , n is oddAsymptotes when , n is odd– y=1 when , n is even y=1 when , n is even – y=-1 when , n is odd y=-1 when , n is odd
2
nx nx
2
nx
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Graph of sec (x)Graph of sec (x)
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GraphGraph 2)63
sec(
y
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One last problem…One last problem…
Write an equation for a secant Write an equation for a secant function with period , phase function with period , phase shift shift
vertical shift -3.vertical shift -3.
3
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HomeworkHomework
4.5 Worksheet (csc and sec)4.5 Worksheet (csc and sec)